[Rubberer] - Movement and collision optimisation

20/07/2022

Movement Optimisation:
- Normalised movement to prevent diagonal speed being faster.
- Attempted some fixes for making snappier rotation.
- Split rotation logic away from Movement logic to allow for finer tuning and testing without impacting the movement mechanics.

Collision Optimisation:
- Moved collision logic to player rather than colliders to improve performance and reduce number of potential failure points.